ZnCo2O4 and the Role of K2CO3 for Highly Advanced Oxidation over Methylene Blue Degradation
Main Article Content
Abstract
ZnCo2O4 spinel nanomaterial modified in the glass phase of K2CO3 demonstrated the highly advanced oxidation in the mild condition of no light and low temperatures (5 oC) to degrade the pollutant model of methylene blue up to the yield of ~95 % (25 oC) and ~ 51% (5 oC) with a molar ratio of Zn:Co:K = 1:2:1. As-products from degrading the solution of methylene blue expressed no signal for the Uv zone in Uv-vis absorption spectra as the signature for aromatic bones which is the superiority of the material for converting methylene blue to non-aromatic compounds, even to CO2. ZnCo2O4 was prepared through the co-precipitation of bi-metallic hydroxide and then calcination with the presence of K2CO3. By XRD, EDX, SEM, and BET, it was confirmed that the product contains only one phase of cubic spinel nanocrystals with a relatively large size and a small surface area, in which the molar ratio of metals in the product is almost the same with the initial mixture.
Keywords:
ZnCo2O4 /K2CO3, methylene blue, highly advanced oxidation, without light
References
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